Overview

overview

10

Static

static

1

7a6db8aecc...d7.exe

windows7-x64

10

7a6db8aecc...d7.exe

windows10-2004-x64

10

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General

  • Target

    7a6db8aecc2376ec7dfc50085757841523fb69135e364b70c7319bf7a39209d7.zip

  • Size

    1.3MB

  • Sample

    230321-qnrpgsad68

  • MD5

    54f4f1e98f07fc182d5ce66e16d6b37b

  • SHA1

    de81237247a5126b7b15d09bc4e99d58bddf8a8a

  • SHA256

    33309db8c10091283aec28c59f055b58562e7780767ddf0feb39ac67c3d787de

  • SHA512

    810770f1ebca06ce746cb054f4789b5c4d4bad16e60da77aead27b935aeeb2dee45bb648de2b69ad2f224ed442bb2f4581c51cfd4f790c9aca5b0833d36ed5ed

  • SSDEEP

    24576:fsbZ/I8ymAalXfNNIJuilyiQtMsNd0SV5C5yWR0QxRyjWmbai2ERVa:fWZrymTNKJQvMsNLZDjFai2ER8

Score
10/10
quasarsuccesspersistencespywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

SUCCESS

C2

41.185.97.216:4782

Mutex

MUTEX_QAxMFzrXWG2cbIHPGK

Attributes
  • encryption_key

    4DwUV8AnxPgmXSMeThKb

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    cmd

  • subdirectory

    SubDir

Targets

    • Target

      7a6db8aecc2376ec7dfc50085757841523fb69135e364b70c7319bf7a39209d7.exe

    • Size

      2.9MB

    • MD5

      68a23c2fc62bddad0a2c6cf36003577b

    • SHA1

      67a19bf734520933adfa28afc017c3af1d6a3d5b

    • SHA256

      7a6db8aecc2376ec7dfc50085757841523fb69135e364b70c7319bf7a39209d7

    • SHA512

      0386671ee83c0825f80a0c95b4e21eb23054878546aff5d8ef63a3bcc6a32c53a61397009aee8e8c5fc171b1ed0e9b69a31111eb1b860e1ff67264fcac806cef

    • SSDEEP

      24576:plubLwtFDS7FYNYD7264xnRhc/LSXxH227hqRCeFcOziFJLUfdKTgWA22222222:gZ7h4xnRhcGXxHxOqdq1pup

    Score
    10/10
    quasarsuccesspersistencespywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks